8722355840 has 256 divisors, whose sum is σ = 24360048000. Its totient is φ = 2952806400.

The previous prime is 8722355819. The next prime is 8722355843. The reversal of 8722355840 is 485532278.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 8722355791 and 8722355800.

It is not an unprimeable number, because it can be changed into a prime (8722355843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8158826 + ... + 8159894.

Almost surely, 2^8722355840 is an apocalyptic number.

8722355840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8722355840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12180024000).

8722355840 is an abundant number, since it is smaller than the sum of its proper divisors (15637692160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8722355840 is a wasteful number, since it uses less digits than its factorization.

8722355840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 44.

The square root of 8722355840 is about 93393.5535248552. The cubic root of 8722355840 is about 2058.4702753971.

The spelling of 8722355840 in words is "eight billion, seven hundred twenty-two million, three hundred fifty-five thousand, eight hundred forty".